What AFUE means
AFUE is the annual fuel utilization efficiency of a furnace or boiler: the share of the fuel's energy that ends up as heat in the house over a year.
Also called annual fuel utilization efficiency.
Where it matters on a HVAC job
High efficiency furnaces condense their exhaust and need plastic venting and a condensate drain, which can change the install price a lot when you replace an older unit. Look at the venting path before you quote the higher AFUE model.
What it costs
Jobs that involve AFUE are priced in the furnace replacement cost guide: about $4,800 typical, usually $2,800 to $7,250. The guide shows its sources and what moves the price. The btu heating calculator prices a job line by line.
Work it out
- Free calculator: BTU heating calculator
- Cost guide: Furnace replacement cost
- Licensing: HVAC license rules by state
- Tools, templates and guides: Free HVAC resources